When a projectile is projected from 45 angle ground when it reaches the highest point then. A. Velocity increases. B. Acceleration increases. C. Horizontal distance zero. D. Vertical velocity decreases. E. None of the above.
D is correct.
D. Vertical velocity decrease
Horizontal component of velocity remains constant as the only force is gravity which is vertical
And acceleration cnt b decreased as gravitational force is constant
B. Acceleration increase
At the highest point only horizontal component remains and due to gravitational pull its acceleration down the ground increases.
Not velocity as mentioned by psoni
A. Velocity increases